 Marianne Heemskerk in 1960 | ||
| Medal record | ||
|---|---|---|
| Women's Swimming | ||
Representing the  Netherlands
| ||
| Olympic Games | ||
 |
1960 Rome | 100 m butterfly |
| European Championships[1] | ||
 |
1962 Leipzig | 100 m butterfly |
Marianne Yvonne Heemskerk (born 28 August 1944 in Rotterdam, South Holland) is a former butterfly swimmer from the Netherlands, who won the silver medal in the 100 m butterfly at the 1960 Summer Olympics in Rome, Italy. She was also part of the 4 × 100 m medley relay team that finished fourth. She also participated in the 1964 Summer Olympics but did not reach the finals.[2] Heemskerk broke the world record in the women's 200m butterfly on 12 June 1960 in Leipzig, East Germany.
